#include <stdio.h>

int main()
{
   char str[] = "";
   int length, i;

   length = sizeof(str) / sizeof(str[0]);

   printf("length of str: %d\n", length);

   for (i = 0; i < length; i++)
   {
       printf("str[%d] = %d\n", i, str[i]);
   }

   return 0;
}